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Pattern of Pink Bollworm Diapaused Larval Exit from the Last Season Cotton Bolls and Their Biological Parameters

Article

Last updated: 01 Jan 2025

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Tags

Economic entomology

Abstract

The present study was carried out to investigate the patterns of pink bollworm (PBW), Pectinophora gossypiella, diapaused larval exit from cotton bolls, percent larval mortality after leaving bolls and the development as well as some biological parameters of living larvae. Diapaused larval exit began at March and the number of emerged larvae from immature green cotton bolls that collected from El-Behira (ranged from 22.3 to 106.7 larvae) is significantly higher than the number of emerged larvae from immature green cotton bolls that collected from Alexandria (numbers ranged from 17.7 to 82.3 larvae) during the investigated period. Percent larval mortality in exited larvae at March, April and May from Alexandria cotton bolls (70.3, 64.7 and 52.1%, respectively) is significantly higher than the percent larval mortality from El-Behira (66.5, 57.8 and 46.4%, respectively). The PBW %adult emergence in El-Behira strain is significantly higher than the PBW percent of adult emergence in Alexandria strain during March and April. Fecundity (No. laid eggs / female) and fertility (percent egg hatching) are significantly higher in the moths which emerged from El-Behira strain than from Alexandria strain. This study represents important information about the pattern of PBW diapaused larval exit from the last season cotton bolls which can help in the PBW infestation prediction and mangement.

DOI

10.21608/asejaiqjsae.2017.1826

Keywords

Pectinophora gossypiella, diapause, biological parameters

Authors

First Name

Mervat

Last Name

H. A. Metayi

MiddleName

-

Affiliation

Plant Protection Research Institute, ARC, Sabahia, Alexandria, Egypt.

Email

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City

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Orcid

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Volume

38

Article Issue

January-March

Related Issue

347

Issue Date

2017-03-01

Receive Date

2017-02-27

Publish Date

2017-03-01

Page Start

69

Page End

73

Print ISSN

1110-0176

Online ISSN

2536-9784

Article File

ASEJAIQJSAE_Volume 38_Issue January-March_Pages 69-73.pdf

PDF . 531.2kB

Link

https://asejaiqjsae.journals.ekb.eg/article_1826.html

Detail API

https://asejaiqjsae.journals.ekb.eg/service?article_code=1826

Order

8

Type

Original Article

Type Code

53

Publication Type

Journal

Publication Title

Alexandria Science Exchange Journal

Publication Link

https://asejaiqjsae.journals.ekb.eg/

MainTitle

Pattern of Pink Bollworm Diapaused Larval Exit from the Last Season Cotton Bolls and Their Biological Parameters

Details

Type

Article

Created At

22 Jan 2023